81% (1994)

73% (2006)

74% (1998)

59% (1999)

67% (2003)

66% (2000)

59% (1994)

77% (1983)

40% (2005)

80% (1987)

72% (1982)

0% (2013)

85% (1984)

46% (2000)

62% (1995)

0% (1979)

71% (1987)

0% (1979)

60% (1991)

68% (1981)